TITLE: 06/03 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 133Mpc
SHIFT SUMMARY:

Lock #1:

• PI mode 29 rung up at 23:58 (1:40 into the lock stretch); RMS reached ~2 but the guardian was able to damp it down successfully after about a minute of stepping through phases; took around another minute for the RMS to return to low level
• Lockloss @ 4:23 (6 hours into lock stretch). Cause not obvious, however, low frequency LSC (ETMX) movement started 3 seconds before lockloss seen by several ASC and LSC signals including LSC MICH, SRCL, DARM, and DHARD P and Y
• Camilla had noticed the ISS diffracted power had been trending upwards over the past several days, so after the lockloss I adjusted the Ref Signal to bring it down from around 3.0% to 2.2% (tagging PSL). This should keep our NLN input power closer to the desired 75W

Lock #2:

• Lock acquisition went unaided. Both arms ran through INCREASE_FLASHES and DRMI caught quickly. NLN reached @ 5:21, Observing @ 5:26

Handing off to Tony.

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